Tea consumption

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101 Foods That Could Save Your Life! David W. Grotto, RD, LDN See book keywords and concepts

Black tea consumption reduces total and LDL cholesterol in mildly hypercholesterolemic adults. J Nutr. 2003;133(10):3298S-3302S. Dora I, Arab L, Martinchik A et al. Black tea consumption and risk of rectal cancer in Moscow population. Ann Epidemiol. 2003;13(6):405-411. Hakim IA, Harris RB. Joint effects of citrus peel use and black tea intake on the risk of squamous cell carcinoma of the skin. BMC Dermatol. 2001;1:3. Hegarty VM, May HM, Khaw K-T. Tea drinking and bone mineral density in older women. Am } Clin Nutr 2000;71:1003-1007. Isemura M, Saeki K, Kimura T, et al.

Nutrition in the Prevention and Treatment of Disease Ann M. Coulston and Carol J. Boushey See book keywords and concepts

Black tea consumption and cancer risk: A prospective study. Br. J. Cancer 54, 677-683. 241. Jian, L., Xie, L. P., Lee, A. H., and Binns, C. W. (2004). Protective effect of green tea against prostate cancer: A case-control study in southeast China. Int. J. Cancer. 108, 130-135. 242. Kinlen, L. J., Willows, A. N., Goldblatt, P., and Yudkin, J. (1988). tea consumption and cancer. Br. J. Cancer 58, 397-401. 243. Kikuchi, N., Ohmori, K., Shimazu, T., Nakaya, N., Kuriyama, S., Nishino, Y., Tsubono, Y., and Tsuji, I. (2006).

A few studies have examined the relationship between tea consumption and prostate cancer risk, and the findings have been inconsistent. A cohort study in Hawaii [240] and a case-control study in China [241] showed an inverse relationship between daily tea consumption and prostate cancer risk, but several other cohort studies [48, 66, 102, 242, 243] as well as case-control studies [56, 57, 61, 244] did not reproduce this finding.

101 Foods That Could Save Your Life! David W. Grotto, RD, LDN See book keywords and concepts

Catechin intake might explain the inverse relation between tea consumption and ischemic heart disease: The Zutphen Elderly Study. Am } Clin Nutr. 2001;74:227-232. Cabrera C, Artacho R, Gimenez R. Beneficial effects of green tea—a review. J Am Coll Nutr. 2006 Apr;25(2):79-99. Review. Conney AH, Lu Y, Lou Y-R et al. Inhibitory effect of green and black tea on tumor growth. Proc Soc Exp Biol Med. 1999;220:229-233. Davies MJ, ludd JT, Baer DJ et al. Black tea consumption reduces total and LDL cholesterol in mildly hypercholesterolemic adults. J Nutr. 2003;133(10):3298S-3302S.

PDR for Herbal Medicines Joerg Gruenwald, Ph.D. See book keywords and concepts

Side effects of tea consumption are possible with persons who have sensitive stomachs, chiefly brought about by the chlorogenic acid and tannin content. Hyperacidity, gastric irritation, reduction of appetite, as well as obstipation or diarrhea could be the result of intense tea consumption. These side effects can be generally avoided through the addition of milk (reduction of the chlorogenic acid and other tannins).

PDR for Herbal Medicines, Fourth Edition Thomson Healthcare, Inc. See book keywords and concepts

Green tea consumption and the risk of pancreatic and colorectal cancer. Int J Cancer 70(3):255-258. 1997. John TJ, Mukundan P. Antiviral property of tea. In: Curr Sci 47:159. 1978. Kaneko T, Mitsuyoshi M & Baba N. Inhibition of linoleic acid hydroperoxide-induced toxicity in cultured human umbilical vein endothelial cells by catechins. Chemi Biol Interact; 114:109-119. 1998. Kannar ML, Wahlqvist ML & O'Brien RC. Inhibition of LDL-oxidation by Green Tea extract. Lancet; 349:360-361. 1997. Kao YH, Hiipakka RA & Liao S.

The 150 Healthiest Foods on Earth: The Surprising, Unbiased Truth About What You Should Eat and Why Jonny Bowden, Ph.D., C.N.S. See book keywords and concepts

It lowers cholesterol—according to a USDA study published in the Journal of Nutrition in 2003, black tea consumption reduced both total and LDL ("bad") cholesterol in adults with mildly elevated cholesterol. And it appears to help the heart—in a small study published in the American Journal of Cardiology in 2004, men who drank black tea experienced improved blood flow in the coronary arteries only a few hours after drinking the tea. I've spent this much time on black tea only because it's so often overlooked, living in the shadow of its "big brother," green tea.

You Don't Have to be Afraid of Cancer Anymore Bill Sardi See book keywords and concepts

The startling finding was that green tea consumption reduced the risk for stomach cancer, even among males who consumed alcohol and smoked tobacco. [Cancer 77: 2449-57, 1996] atic, esophageal, skin, ovarian, or liver cancers. With all of the positive news reports surrounding green tea, here are some of the negative reports. In a study conducted in Japan among adults age 40-79 years, the consumption of green tea, 10 cups or more a day, did not reduce the risk for stomach cancer.

PDR for Herbal Medicines, Fourth Edition Thomson Healthcare, Inc. See book keywords and concepts

Heart Disease To clarify the effect of Green tea consumption on cardiovascular disease and cancer, a large, population-based cohort study was conducted as part of the Ohsaki National Health Insurance Cohort Study in Japan. The cause of mortalities was tracked in these participants for up to 11 years (and for up to 7 years for cause-specific mortalities). In this time frame, 4,209 people died. Analysis revealed that consumption of Green Tea was associated with a lower risk of death from cardiovascular disease, as well as from other causes with the exception of cancer.

Women with the highest tea consumption (or = 200 g/month) had a 33% reduced risk for colon cancer, 43% reduced risk of rectal cancer and 47% reduction in the risk for pancreatic cancer (p= 0.07, 0.001, and 0.008 respectively). For men who consumed S 300 g/month of Green Tea, the risk of colon cancer was reduced by 18%, for rectal cancer there was a 28% reduction of risk, and for pancreatic cancer the risk reduction was 37% (p= 0.38, 0.04, and 0.04, respectively) (Ji, 1997).

An empirical link between Green tea consumption and cancer-fighting effects was established in the late 1980s. A 2005 review cites the tea's unique set of catechins, with antioxidant, antiangiogenesis, and antiproliferative elements, as explanation for the anticancer actions of Green Tea. The major tea catechin, (-)-epigallocatechin, has anticancer and medicinal properties that are examined. Researchers working with cancer cell lines have linked Green tea's anticancer activity to growth inhibition—a possible explanation for its antitumor activity.

Two human studies, one in smokers and one in nonsmokers, found no effect of Green tea consumption (6 cups of Green Tea daily for 4 weeks) on LDL oxidation ex vivo or on plasma levels of antioxidants (vitamins C, E and B-carotene) and lipids (HDL and LDL cholesterol and triglycerides) (Princen et al, 1998; van het Hof et al, 1997). Epigallocatechin-3-gallate (EGCG) was effective at inhibiting ultraviolet B exposure (Chen, 1998) and preventing ultraviolet-induced skin damage that correlated with reduced lipid peroxidation (Kim, 1998).

What Your Doctor May Not Tell You About Diabetes: An Innovative Program to Prevent, Treat, and Beat This Controllable Disease Steven V. Joyal See book keywords and concepts

Green tea consumption and serum lipid profiles: A cross-sectional study in northern Kyushu, Japan. Prev Med 1992 Jul; 21(4):526-31. Kowluru RA, Kanwar M. Effects of curcumin on retinal oxidative stress and inflammation in diabetes. Nutr Metab (Lond) 2007 Apr 16; 4:8. Kris-Etherton P et al. AHA Science Advisory: Lyon Diet Heart Study. Benefits of a Mediterranean-style, National Cholesterol Education Program/American Heart Association Step I dietary pattern on cardiovascular disease. Circulation 2001; 103:1823. Kumar PA et al.

The 150 Healthiest Foods on Earth: The Surprising, Unbiased Truth About What You Should Eat and Why Jonny Bowden, Ph.D., C.N.S. See book keywords and concepts

In writing about the study, the medical/nutritional newsletter Clinical Pearls said the study "suggested that tea consumption may provide a relatively easy dietary intervention for reducing hormone-related cancer risk." Black Tea Can Lower Cholesterol Black tea lowers triglycerides—in fact, it's actually superior to green tea in doing so—and high triglycerides are strongly associated with a high risk of cardiovascular disease. It's also slightly better than green tea at inducing the body's powerful antioxidant superoxide dismutase (SOD).

101 Foods That Could Save Your Life! David W. Grotto, RD, LDN See book keywords and concepts

Black tea consumption and risk of rectal cancer in Moscow population. Ann Epidemiol. 2003;13(6):405-411. Hakim IA, Harris RB. Joint effects of citrus peel use and black tea intake on the risk of squamous cell carcinoma of the skin. BMC Dermatol. 2001;1:3. Hegarty VM, May HM, Khaw K-T. Tea drinking and bone mineral density in older women. Am } Clin Nutr 2000;71:1003-1007. Isemura M, Saeki K, Kimura T, et al. Tea catechins and related polyphenols as anticancer agents. Biofactors. 2000;13(l-4):81-85. Kim W et al.

Women's Encyclopedia of Natural Medicine: Alternative Therapies and Integrative Medicine for Total Health and Wellness Tori Hudson, N.D. See book keywords and concepts

A recenr srudy suggests that rose tea consumption helped to decrease both pain and psychological distress of women during menses.26 In addition, another study showed that abdominal massage of rose, lavender, or clary sage essential oil in a base of almond oil was more effective than almond oil alone in decreasing the severity of dysmenorrhea.27 Valerian {Valeriana Officinalis). Valerian traditionally has been used primarily as a sedative and antispasmodic for the treatment of anxiety disorders, sleep disorders, and a diverse array of conditions associated with pain.

Another study, the Ohsaki study,292 found that green tea consumption was inversely associated with mortality due to all causes and inversely associated with cardiovascular disease.

The Science of Flavonoids Erich Grotewold See book keywords and concepts

Similarly, a small but significant increase in the lag time of LDL oxidation was observed after 4 weeks of black tea consumption (600 ml/day) (Ishikawa et al, 1997). 3. ANTICARCLNOGENESIS Studies on cancer prevention have assessed the impact of a wide variety of flavonoids and a selected few isoflavones for their efficacy in inhibiting cancer in a number of animal models. These studies demonstrated that flavonoids inhibit carcinogenesis in vitro and substantial evidence indicates that they also do so in vivo (Caltagirone et al, 2000; Miyagi et al, 2000).

The 150 Healthiest Foods on Earth: The Surprising, Unbiased Truth About What You Should Eat and Why Jonny Bowden, Ph.D., C.N.S. See book keywords and concepts

Finally, a study recently published in Cancer found that among 109 Polish women, high black tea consumption was associated with diminished salivary levels of 7 7 beta-estradiol, the most potent mammalian estrogenic hormone and one that can be carcinogenic in hormone-related cancers. (Lower levels of the hormone were also reported when women consumed high amounts of the cate-chins found in green tea as well.

PDR for Herbal Medicines, Fourth Edition Thomson Healthcare, Inc. See book keywords and concepts

Hojgaard L, Arffmann S, Jorgeasen M, Krag E, (1981) tea consumption, a cause of constipation. BMJ 282: 864. Jahn HU, Zeitz M, (1991) Immunmodulatorische Wirkung von Saccharomyces boulardii beim Menschen. In: Seifert J, Ottenjann R, Zeitz M, Bockemiihl J (Hrsg) Okosystem Darm III. Springer-Verlag, S 159-164. Kollaritsch HH, Tobiiren D, Scheiner O, Wiedemann G, (1988) Prophylaxe der Reisediarrhoe. Munch Med Wschr 130: 671-673. Massot J, Desconclois M, Astoin J, (1982) Protection par Saccharomyces boulardii de la diarrhee a Escherichia coli du souriceau. Ann Pharm Fr 40: 445-449.

The Green Tea Book Lester A. Mitscher and Victoria Toews See book keywords and concepts

Tea is safe to consume over a wide range of levels of intake; in fact, populations with typically higher levels of tea consumption are consistently shown to have derived greater health benefits from the tea they drink. To make drinking tea even easier, there are many varieties of tea, so there's sure to be a tea to please almost any palate. FINDING THE RIGHT AMOUNT How much green tea (or green tea extract) you should consume to benefit your health depends on your overall diet, your lifestyle, and the presence or absence of risk factors, such as smoking or a family history of heart disease.

Superfoods Rx Diet: Lose Weight with the Power of SuperNutrients Wendy Bazilian, DRPH, MA, RD, Steven Pratt, MD, Kathy Matthews See book keywords and concepts

You're also going to increase your green and black tea consumption. You can have it iced or hot, with or without lemon. I'd like you to avoid added sweeteners but if you need to wean yourself from sweet drinks you can use just a bit of sugar or honey to start. Why do fluids matter so much? Over the years our pattern of fluid consumption has shifted. Today, too many of us are drinking fluids that are high in calories like sodas and juices. Indeed, research has shown that adults today are drinking about 20 ounces more caloric beverages a day14.

Hunger Free Forever: The New Science of Appetite Control Michael T. Murray and Michael R. Lyon See book keywords and concepts

Regular green tea consumption is linked to a reduced risk for heart attacks and strokes as well as most forms of cancer, particularly breast and prostate cancer. The health benefits of green tea are due to the presence of molecules known as polyphenols or catechins, the most active of which is epigallocatechin gallate (EGCg). While green tea can be consumed as a beverage, to get the weight-loss promoting benefits you will need to use green tea extracts concentrated for EGCg and other catechins at an effective dosage.

Nutrition in the Prevention and Treatment of Disease Ann M. Coulston and Carol J. Boushey See book keywords and concepts

Tea consumption and cancer. Br. J. Cancer 58, 397-401. 243. Kikuchi, N., Ohmori, K., Shimazu, T., Nakaya, N., Kuriyama, S., Nishino, Y., Tsubono, Y., and Tsuji, I. (2006). No association between green tea and prostate cancer risk in Japanese men: The Ohsaki Cohort Study. Br. J. Cancer. 95, 371-373. 244. Sharpe, C. R., and Siemiatycki, J. (2002). Consumption of non-alcoholic beverages and prostate cancer risk. Eur. J. Cancer Prev. 11, 497-501. 245. Yang, C. S., Chung, J. Y., Yang, G, Chhabra, S. K, and Lee, M. J. (2000). Tea and tea polyphenols in cancer prevention. J. Nutr. 130, 472S^178S.

A cohort study in Hawaii [240] and a case-control study in China [241] showed an inverse relationship between daily tea consumption and prostate cancer risk, but several other cohort studies [48, 66, 102, 242, 243] as well as case-control studies [56, 57, 61, 244] did not reproduce this finding. Tea contains polyphenols that are potentially anticarcinogenic because of their antioxidant properties, effects on signal transduction pathways, inhibition of cell proliferation, and other actions in the body [245]. 2. Nutrients and Other Food Constituents a. Vitamin D.

101 Foods That Could Save Your Life! David W. Grotto, RD, LDN See book keywords and concepts

Effect of green tea consumption on endothelial function and circulating endothelial progenitor cells in chronic smokers. Circ J. 2006 Aug;70(8):1052-1057. Kobayashi M, Unno T, Suzuki Y, et al. Heat-epimerized tea catechins have the same cholesterol-lowering activity as green tea catechins in cholesterol-fed rats. Biosci Biotechnol Biochem. 2005;69(12):2455-2458. Nagao T, Komine Y, Soga S, Meguro S, Hase T, Tanaka Y, Tokimitsu I. Ingestion of a tea rich in catechins leads to a reduction in body fat and malondialdehyde-modified LDL in men. Am J Clin Nutr. 2005;81:122-129.

The protective effect of habitual tea consumption on hypertension. Arch Intern Med. 2004;164(14)!l534-1540. Teff www.ethnomed.org/cultures/ethiop/teff.html Mengesha B, Ergete W. Staple Ethiopian diet and cancer of the oesophagus. East Afr Med}. 2005 Jul;82(7):353-356. Tomatoes www.tomato.org Basu A, Imrhan V. Tomatoes versus lycopene in oxidative stress and carcinogenesis: conclusions from clinical trials. Eur J Clin Nutr. 2007 Mar;61(3):295-303. Bhuvaneswari V, Nagini S. Lycopene: a review of its potential as an anticancer agent. Current Medicinal Chemistry—Anti-Cancer Agents.

The Green Tea Book Lester A. Mitscher and Victoria Toews See book keywords and concepts

The most common adverse effect from exceptionally high tea consumption is overstimulation brought on by caffeine, leading to such disturbances as insomnia. Anyone sensitive to this effect should restrict intake of caffeine from all sources. Fortunately, decaffeinated tea products are available, as are caffeine-free dietary supplements such as Tegreen.

Oolong tea is the least widely used; less than 2 percent of the yearly tea consumption is based on this variety. Many substances found in nature or made by scientists can prevent or treat the diseases that afflict mankind, yet each seems to have a drawback: some work for only one condition, for example, and others are expensive, inconvenient, or unpleasant. Green tea stands out because it is different from those substances. Not only does it boost immune function and help prevent cancer^ heart disease, diabetes, and dental cavities, but it is easy to use, inexpensive, and tastes great!

A handful of other studies of human populations failed to find any relationship—positive or negative—between tea consumption and lung cancer. In order to reconcile these equivocal findings, researchers from the Nagoya University School of Medicine in Japan analyzed data gathered in the Okinawa prefecture, an area of Japan with the highest rate of mortality from lung cancer of all the forty-seven Japanese prefectures. In Okinawa in 1992, the rate was 38.2 deaths from lung cancer per 100,000 men and 10.2 per 100,000 women.

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